Steve, as I'm sure you understand, there's a good chance their 480 volt is Three Phase Three Wire UNGROUNDED Delta which has no reference nor any voltage with respect to mother earth ground so in theory you can stand barefoot on wet ground and grab any one leg and NOT be shocked. Of course due to inductive and capacitive coupling there can be voltage present relative to ground and could give you a tingle but its extreme lowwwwwwwwwww energy insufficient to pump 30 milliamps through your heart in theory at least IM STILL NOT TRYING IT LOL Today much 480 three phase is actually 480 Y 277 Volt Three Phase Four Wire GROUNDED NEUTRAL.
In the case of a non earth grounded portable genset (as OSHA and NEC recommends) its the same thing, with no bond to earth none of the wires to the tools have voltage relative to earth so you dont get shocked if you touch one UNLIKE if you drove a ground rod at the genny and bonded it to Neutral then the hot wires ARE 120 VAC ABOVE GROUND AND CAN KILL YOU IF TOUCHED.
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Today's Featured Article - 12-Volt Conversions for 4-Cylinder Ford 2000 & 4000 Tractors - by Tommy Duvall. After two summers of having to park my old 1964 model 4000 gas 4 cyl. on a hill just in case the 6 volt system, for whatever reason, would not crank her, I decided to try the 12 volt conversion. After some research of convert or not, I decided to go ahead, the main reason being that this tractor was a working tractor, not a show tractor (yet). I did keep everything I replaced for the day I do want to restore her to showroom condition.
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